What are the center and the radius of:
x^2 + 4x + y^2 - 20y + 100 = 0
c= (-2, 10) r=4
Oc=(2,-10);= 2
c= (-2, 10) r = 2
c=(2,-10) r=4

If chord ab is congruent to chord cd, then what must be true about ef and eg?

Can someone plz me understand how to do these. plz, show work.in exercises 1-4, rewrite the expression in rational exponent form.[tex]\sqrt[4]{625} \sqrt[3]{512} (\sqrt[5]{4} )³ (\sqrt[4]{15} )^{7}\\ (\sqrt[3]{27} )^{2}[/tex]

Troy has a 7/23 balloon mortgage on his $260,000 home. he has been making payments of $1323 each month and will have a balloon payment due for the amount of $198,569.